| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 05/06/1980 | US4201678 Foam drilling and workover in high temperature wells |
| 05/06/1980 | CA1076954A1 Method for the recovery of oil |
| 05/06/1980 | CA1076953A1 Single well tracer method to evaluate enhanced recovery |
| 04/29/1980 | US4200634 Water treatment |
| 04/29/1980 | US4200633 Thioether containing quaternary ammonium derivatives of 1,4-thiazines as microbiocides |
| 04/29/1980 | US4200540 Method for fracturing subterranean formations |
| 04/29/1980 | US4200539 Fracturing compositions and method of preparing and using the same |
| 04/29/1980 | US4200154 Injecting aqueous mineral acid containing oxyalkylated acrylamido alkanesulfonic acid polymer to etch passageways in formation |
| 04/29/1980 | US4200153 Method for cementing high temperature wells |
| 04/29/1980 | US4200151 Secondary recovery process |
| 04/29/1980 | CA1076448A1 Organophilic clay having enhanced dispersibility |
| 04/22/1980 | US4199680 Method of treating and logging wells |
| 04/22/1980 | US4199625 Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers |
| 04/22/1980 | US4199484 Gelled water epoxy sand consolidation system |
| 04/22/1980 | US4199027 Salt of sulfated polyoxyethylene alcohol as thickener |
| 04/22/1980 | CA1075888A1 Flooding with micellar systems affected by cosurfactants |
| 04/15/1980 | US4197912 Oil recovery via silicone introduction |
| 04/15/1980 | US4197911 Using a lower alcohol |
| 04/15/1980 | CA1075453A1 Oil recovery method and alkyl alkoxy propio sulfonate surfactants |
| 04/08/1980 | US4196777 Oxidized lignosulfonates as additives in oil recovery processes involving chemical recovery agents |
| 04/03/1980 | WO1980000590A1 Improved method of servicing wellbores |
| 04/01/1980 | US4195689 Chemical waterflood process development |
| 04/01/1980 | CA1074696A1 Oil recovery process by in situ emulsification |
| 03/25/1980 | US4194566 Method of increasing the permeability of subterranean reservoirs |
| 03/25/1980 | US4194565 Surfactant oil recovery method for use in high temperature formations containing water having high salinity and hardness |
| 03/25/1980 | US4194564 Oil recovery method |
| 03/25/1980 | US4194563 High conformance enhanced oil recovery process |
| 03/25/1980 | CA1074091A1 Converter type scale remover |
| 03/25/1980 | CA1074090A1 Oxygen scavenging methods and additives |
| 03/18/1980 | USRE30230 Closed circuit method of circulating a substantially solid free drilling fluid |
| 03/18/1980 | US4193453 Method for consolidating sand or water control in subterranean formations |
| 03/18/1980 | US4193452 Amphoteric quaternary ammonium sulfonate |
| 03/18/1980 | CA1073656A1 Drilling mud treating agents and method of using same |
| 03/18/1980 | CA1073655A1 Method and composition for acidizing subterranean formations |
| 03/18/1980 | CA1073654A1 Hydrolyzed polyacrylamide latices for secondary oil recovery |
| 03/18/1980 | CA1073653A1 Process for displacing fluid in a subterranean formation by means of a thickened aqueous solution |
| 03/11/1980 | US4192767 Aqueous surfactant solutions and oil-in-water emulsions |
| 03/11/1980 | US4192755 Process for recovering hydrocarbons from a hydrocarbon-bearing formation |
| 03/11/1980 | US4192753 Well completion and workover fluid having low fluid loss |
| 03/11/1980 | US4192382 High conformance enhanced oil recovery process |
| 03/11/1980 | CA1073193A1 Oil recovery by surfactant waterflooding |
| 03/04/1980 | US4191657 Compositions for acidizing subterranean formations |
| 03/04/1980 | US4191254 Apparatus and method for plugging voids in a ground stratum |
| 03/04/1980 | US4191253 Surfactant waterflood oil recovery method |
| 03/04/1980 | US4191252 Aromatic solvent, steam distillation, petroleum sulfonates |
| 03/04/1980 | US4191249 Oil soluble thickener, water soluble thickener |
| 03/04/1980 | CA1072879A1 Process for water treatment in mobility controlled caustic flooding process |
| 03/04/1980 | CA1072877A1 Method for forming a non-dissoluble sand control pack and a sand control pack made thereby |
| 03/04/1980 | CA1072854A1 Foaming and silt suspending agent |
| 02/26/1980 | US4190727 Dithioles |
| 02/26/1980 | US4190718 Suspension polymerization in saturated aliphatic hydrocarbon containing controlled amount of water |
| 02/26/1980 | US4190462 Dissolving barium sulfate scale with aqueous solutions of salts of carboxymethyl monocyclic macrocyclic polyamines |
| 02/26/1980 | US4190110 Method of cementing wellbores using high temperature cement mud spacer |
| 02/26/1980 | US4190109 Introduction and selective removal of debilitating agent for permeability correction |
| 02/26/1980 | CA1072315A1 Aqueous clay base mud for deep drilling |
| 02/26/1980 | CA1072314A1 Alkoxylated asphalts as co-surfactants in surfactant oil recovery processes usable in formations containing water having high concentrations of polyvalent ions such as calcium andmagnesium |
| 02/26/1980 | CA1072313A1 Cement composition and method of cementing |
| 02/20/1980 | EP0008153A1 Process for recovering oil from subterranean oil-bearing formations and an emulsion useful therein |
| 02/19/1980 | US4189002 Thermosetting resin, chain stopping to inhibit crosslinking in well bore |
| 02/12/1980 | US4188359 Corrosion inhibition |
| 02/12/1980 | US4187907 Waterflood method using surfactants |
| 02/12/1980 | CA1071496A1 Hydroxypropyl locust bean/xanthomonas hydrophilic colloid blends |
| 02/06/1980 | EP0007815A1 Process of well control by means of gel formation |
| 02/05/1980 | US4187185 Oil recovery process using oxyalkylated additives |
| 02/05/1980 | US4187073 High shear |
| 02/05/1980 | US4186803 Well completion and work over method |
| 02/05/1980 | US4186800 Process for recovering hydrocarbons |
| 02/05/1980 | CA1071076A1 Silane coated silicate minerals and method for preparing same |
| 02/05/1980 | CA1070936A1 Oil well grouting with temperature activated aqueous silica gel |
| 01/29/1980 | CA1070682A1 Polygalactomannan allyl ether compositions |
| 01/29/1980 | CA1070492A1 Stabilizing the viscosity of an aqueous solution of polysaccharide polymer |
| 01/29/1980 | CA1070491A1 Clay-free wellbore fluid comprising guar gum |
| 01/23/1980 | EP0007013A1 Gelled compositions and process for treating subterranean formations |
| 01/23/1980 | EP0007012A1 Well treating acidic composition and method for treating subterranean formations |
| 01/22/1980 | US4184549 High conformance oil recovery process |
| 01/22/1980 | US4184547 Situ mining of fossil fuel containing inorganic matrices |
| 01/22/1980 | CA1070100A1 Method and liquid for treating the surface of particles of a subsurface formation |
| 01/15/1980 | US4183821 Heteric/block polyoxyalkylene compounds as crude oil demulsifiers |
| 01/15/1980 | US4183814 Drilling fluids or reinforcement materials |
| 01/15/1980 | US4183406 Injection of solution of neutralized ionomer which crosslinks on contact with water |
| 01/15/1980 | CA1069688A1 Method for dissolving clay |
| 01/08/1980 | US4182860 Modified heteropolysaccharides and their preparation |
| 01/08/1980 | US4182417 Method for controlling permeability of subterranean formations |
| 01/08/1980 | CA1069290A1 Oxazolidine friction reducing additives for aqueous drilling fluids |
| 01/08/1980 | CA1069289A1 Clay-free wellbore fluid comprising guar gum |
| 01/08/1980 | CA1069288A1 Super-yield bentonite base drilling fluid |
| 01/01/1980 | US4181617 Aqueous drilling fluid and lubricant composition |
| 01/01/1980 | US4181533 Well cementing in permafrost |
| 01/01/1980 | US4181178 Oil recovery by waterflooding with thickened surfactant solutions |
| 12/18/1979 | US4178993 Method of starting gas production by injecting nitrogen-generating liquid |
| 12/12/1979 | EP0005874A1 Method for increasing the productivity of a well penetrating an underground formation |
| 12/12/1979 | EP0005835A1 Gelable aqueous mixtures of polyamide aliphatic polyaldehyde and metal hypohalite; the resulting gel and rendering porous structures impermeable with the mixtures |
| 12/11/1979 | CA1067686A1 Self-breaking viscous aqueous solutions and the use thereof |
| 12/04/1979 | US4177207 Sulfonation of petroleum feedstock in presence of additive; used for enhanced oil recovery |
| 12/04/1979 | US4176720 Well cementing in permafrost |
| 11/28/1979 | EP0005571A1 Method for forming channels of high fluid conductivity in formation parts around a borehole |
| 11/27/1979 | US4176064 Mixture concentrator |
| 11/27/1979 | US4175618 High vertical and horizontal conformance thermal oil recovery process |
| 11/27/1979 | CA1067108A1 Cement composition and method of cementing |
| 11/20/1979 | US4175042 Well completion and work over fluid and method of use |